<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <div id="app">
           <input type="text" @keyup.enter="fn1">
           <input type="text" @keyup.a="fn2">
           <input type="text" @keyup.esc="fn3">
      </div>
    <script src="./vue.js"></script>
    <script>
        new Vue({
            el: "#app",
            data() {
                return {
                
                }
            },
            methods:{
                fn1 () {
                    console.log('我按了回车')
                },
                fn2 () {
                    console.log('我按了a触发的')
                },
                fn3 () {
                    console.log('esc按了')
                }
            }
        })
    </script>
</body>
</html>